disp: msm: add VDC-m parameter calculation support

Add support to calculate the parameters needed to configure
the VDC-m encoder. These are also needed to configure the PPS
command which shall be sent to the decoder.

Change-Id: I36db93f7555aee34b5b893e389a7eb88d0e05f68
Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>

msm/sde_vdc_helper.h

@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2020, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef __SDE_VDC_HELPER_H__
+#define __SDE_VDC_HELPER_H__
+
+#include "msm_drv.h"
+
+#define VDC_BPP(bits_per_pixel) (bits_per_pixel >> 4)
+
+#define VDC_NUM_BUF_RANGES (DSC_NUM_BUF_RANGES - 1)
+
+#define VDC_FLAT_QP_LUT_SIZE 8
+#define VDC_MAX_QP_LUT_SIZE 8
+#define VDC_TAR_DEL_LUT_SIZE 16
+#define VDC_LBDA_BRATE_LUT_SIZE 16
+#define VDC_LBDA_BF_LUT_SIZE 16
+#define VDC_LBDA_BRATE_REG_SIZE 64
+
+#define VDC_VIDEO_MODE 0
+#define VDC_CMD_MODE 1
+
+#define VDC_TRAFFIC_SYNC_PULSES 0
+#define VDC_TRAFFIC_SYNC_START_EVENTS 1
+#define VDC_TRAFFIC_BURST_MODE 2
+
+#define MAX_PIPELINE_LATENCY 68
+#define OB_DATA_WIDTH 128
+#define OUT_BUF_FULL_THRESH 2
+#define OUT_BUF_UF_MARGIN 3
+#define OUT_BUF_OF_MARGIN_TC_10 5
+#define OUT_BUF_OF_MARGIN_OB 3
+#define OUTPUT_DATA_WIDTH 64
+#define OB0_RAM_DEPTH 912
+#define OB1_RAM_DEPTH 736
+
+#define SSM_MAX_SE_SIZE 128
+#define RC_TARGET_RATE_EXTRA_FTBLS 2
+
+#define NUM_ACTIVE_HS 1
+#define MAX_PIXELS_PER_HS_LINE 5120
+
+int sde_vdc_populate_config(struct msm_display_vdc_info *vdc_info,
+	int intf_width, int traffic_mode);
+
+#endif /* __SDE_VDC_HELPER_H__ */
+